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Steelers' Dust-catalyzed Oxidative Treatment of Landfill Leachate  

강정우 (광운대학교 환경공학과)
김성용 (광운대학교 환경공학과)
장윤영 (광운대학교 환경공학과)
배범한 (경원대학교 토목공학과)
장윤석 (포항공과대학 환경공학부)
Publication Information
Journal of Soil and Groundwater Environment / v.7, no.1, 2002 , pp. 25-31 More about this Journal
Abstract
This study attempts to elucidate the possibility of treating landfill leachate by steelers' dust/${H_2}{O_2}$ system in a well-mixed batch reactor. Experiments were conducted to investigate the effects of operating variables such as pH, dust and ${H_2}{O_2}$ dosages and ${H_2}{O_2}$ injection method on the treatment efficiency, Contaminant concentrations were identified by TOC (Total Organic Carbon) analyzer. Experimental observations showed the possibility of steelers' dust as a catalytic reagent in the ${H_2}{O_2}$/dust system. The batch experiments showed that the optimal $H_2O$$_2$ and dust dosage, 20g/L dust. 2,000mg/L ${H_2}{O_2}$ removed about 75% of initial TOC concentration (250mg/1) within 60 min. And the TOC removal in the ${H_2}{O_2}$/dust system effectively proceeded only within a limited pH range of 3-4. The stealers' dust-catalyzed oxidative treatment of landfill leachate was more efficient compared with the $FeSO_2$catalyzed system (Fenton oxidation) for the removal rate and the cost.
Keywords
TOC; Steelers' dust; Fenton-like oxidation; landfill leachate;
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